Improvement in divided collars for shaft-couplings



'IATES rn'r Orton.

IMPROVEMENT IN DIVIDED COLLARS FOR SHAFT- COUPLINGS.

Specification forming part of Letters Patent No. 180,304, dated July 25,1876; application filed July 12, 1876.

To all whom it may concern:

Be it known that I, JAMES YOooM, Jr., of the city and county ofPhiladelphia, in the State of Pennsylvania, have invented certain newand useful Improvements in Divided Oo'llars for Shatting, &c., of whichthe following is a specification My present invention is an improvementupon that for which Letters Patent of the United States, No. 116,134,were granted and issued to me under date of June 20, 1871; and

its object is to provide, in a collar which can be divided to be placedon or removed from a shaft, a secure and substantial connection for itstwo sections. To this end my improve ments consist in the combination ofa collar, cast in two sections, and hinges orjoint-pieces, formed of ametal of greater strength than-the sections of the collar, and unitedthereto in the operation of casting them; and, further, in combiningwith the sections and hingepieces set-screws passing through both, andserving to hold them together, as well as to retain the collar inposition upon its shaft, all as hereinafter more fully set forth.

In the accompanying drawings, Figure l is a central section of a collarembodying my improvements, at the line 3 y of Fig. 2; Fig. 2, a sectionat right angles thereto, at theline a m of Fig. 1; Fig.3, a plan or topview ofone of the male hinge-pieces, and Fig. 4 a similar View of afemale hinge-piece.

To carry out the object of my invention I form a collar of two separatesections, A B, usually composed of cast-iron, which are connected bymeans of two pair of interlocking hin e or 'oint )ieees ab a b andinscc. b 7 I The hinge-pieces are inserted and adjusted in the mold inwhich the sections A B are cast, and the metal which forms the latter ispoured therein, and adheres, when cold, to such portions of thehinge-pieces as are not to be exposed when the eollar is finished, theexposed portions being clay washed to prevent such adhesion. The hingepieces are perforated and provided with dovetail projections to perfeettheir connection with the sections A B.

A divided casting, formed substantially as hereinabove stated, isdescribed and claimed in my Letters Patent N 0. 116,134 aforesaid; butin my present improvement 1 form the hingepieces of a metal possessinggreater strength than that of which the sections A B are -composed-as,for example, malleable or wrought iron, or steel, thus affording asecure and solid connection, with a reduction in size of saidhinge-pieces.

In order to attach the hinge-pieces and sections more firmly together,hubs or bosses a b may be formed upon the hinge pieces, through whichand through theadjacent metal of the sections A B set-screws d d pass,said set-screws serving the dou ble purpose ofefi'eoting a strongerconnection of the hinge-pieces and sections, and of securing thefinished collar in position upon its shaft.

My improvements are shown as applied in a collar; but it is obvious thatthey may be used in pulley, eccentric, or crank hubs with equalfacility, and without departingfrom the spirit of my invention.

I claim as my invention, and desire to secure by Letters Patent 1. Thecombination, iii a divided collar for shat'ting, &c., of two sectionsconnected by in terlocking hinge-pieces, united to the sections in theoperation of casting the latter, and formed of a metal of greaterstrength than that of which the sections are composed, substantially asset forth.

2. The combination, in a divided collar for shat'ting, &c., of twosections, interlocking hinge-pieces, and a set screw or screws passingthrough the hinge-pieces and sections, sub' stantially as set forth.

1 JAMES YOOOM, JR.

Witnesses: J. SNowDEN BELL, PETER PARET.

